The tour guide explained the castle's violent history before we entered the main hall.

進入大廳前，導遊先介紹了這座城堡血腥的歷史。

Security staff were trained to handle violent customers calmly and call the police if needed.

保全人員受過訓練，能冷靜處理暴力的顧客，必要時會報警。

Shipments were delayed because violent protests blocked the main road to the port.

由於激烈的抗議活動封鎖了通往港口的主要道路，貨物因此延誤。